This new English publication of the Cell of St John the Theologian, Koutloumousiou Monastery, Mount Athos, has been translated from their 2012 Geek edition which was written to help those who are seeking for a closer understanding of the faith, worship and life of the Orthodox Church. The first part on faith includes sections on the Triune God, creation, the divine economy, the Mother of God, the Church and the Kingdom of God; the second part on worship describes the feasts, the church building, the Divine Liturgy and the Holy Mysteries of the Church; and the third part concludes with the Life in Christ: the era of the Old Testament, the era of Grace, prayer, asceticism and monasticism, the virtues, and the deification of man. As with his other books, Elder Gregorios widely uses the actual words of the holy Apostles and the God-bearing Fathers of the Church to substantiate its content and theology.